Turn Ideas Into Outdoor Spaces

Custom Deck Design of Wisconsin

Designed for Your Space, Style & Lifestyle

Custom Decks Built From the Ground Up

Every outdoor space is different, and so is every deck we build. With our custom design process, we create decks that complement your home’s layout, match your lifestyle needs, and work with your property’s terrain. Whether you want wraparound access, built-in seating, or space for a grill station, our team will help you plan every inch. You’ll get detailed designs, real-time layout previews, and expert guidance before the first board is installed.

Deck Planning That Fits Your Property

On-Site Consultations & 3D Layout Options

Your deck design begins with a site visit where we take measurements, assess slope and drainage, and learn how you want to use the space. We then create a custom layout using 3D modeling software to preview your deck before we build. From material selection to stair placement, every element is tailored to fit your goals and site conditions. Our designs are always practical, code-compliant, and visually balanced.

Free on-site design consultations across Wisconsin

3D modeling for real-time deck layout visualization

Tailored planning for stairs, rails, and access points

Custom deck layout render shown to Wisconsin homeowner

Every Deck Starts With Strong Materials

Choose Between Composite or Wood Framing

We design decks using top-tier materials that match your needs and budget. Whether you want a premium composite surface from brands like Trex or the natural charm of cedar, we’ll help you compare durability, maintenance, and cost. Our framing process uses pressure-treated lumber rated for Wisconsin's climate, and our surface boards are installed with hidden fasteners for a clean look. All materials meet code and manufacturer standards.

Deck design plan reviewed for Wisconsin snow load compliance

Designed With Wisconsin Building Codes in Mind

Engineered for Load, Drainage & Longevity

Our custom designs don’t just look good—they’re built for real-world use. We factor in snow loads, frost lines, drainage flow, and stair angles based on your location and usage. Multi-level decks and rooftop builds include full load calcs and permitting support. Every plan is reviewed for local code compliance, and our designs include structural upgrades like lateral bracing, ground anchors, and post-to-beam fasteners.

Made for How You Live Outdoors

Built-In Features, Levels & Extensions

A custom deck should feel like part of your home. Our designs can include multiple levels, built-in seating, hot tub surrounds, and connections to patios, kitchens, or garages. We also plan for lighting, shade structures, and flow between indoor and outdoor spaces. Whether you’re entertaining a crowd or carving out a private nook, we’ll design features that match your lifestyle. Every deck is drawn to maximize comfort, beauty, and function.

Multi-level deck with built-in seating in Wisconsin backyard

What Sets Our Deck Designs Apart

Site-Specific Planning: We assess slope, drainage, and existing structures to ensure your deck is properly engineered from day one.

Tailored Layouts: Each deck layout is designed to fit your yard’s size, usage, and views—never generic or off-the-shelf.

Built-In Functional Features: Add stairs, storage, benches, planters, and more—designed directly into your deck from the start.

Full Permit Handling: We take care of municipal approvals, including load calcs and inspections, so you don’t have to.

Visual Previews in 3D: Get a detailed 3D rendering of your custom deck design before construction begins.

Don't worry, we can help!

Practical Designs That Add Lasting Value

Our decks don’t just expand your space—they increase your home’s appeal and long-term value. A professionally designed deck enhances resale potential and makes your outdoor areas more usable year-round. Because we design with climate, grade, and traffic flow in mind, our builds remain solid and attractive for decades. Additions like lighting, shade covers, or grilling stations can all be incorporated during the design phase.

Deck designs built to boost home resale value

Integrated features like lighting & storage

Weather-smart layouts for year-round use

Backed by Warranties & Code Compliance

We Stand Behind Every Custom Deck Build

At Alliance Deck Builders, we don’t cut corners. All custom deck designs are built to exceed Wisconsin building codes and include full manufacturer and labor warranties. We provide signed specs, layout drawings, and stamped load calculations when required—giving you the documents you need for peace of mind. Our team also conducts a final walkthrough to ensure your deck is exactly what you expected.

Frequently Asked Deck Design Questions

Custom Deck Design & Construction FAQ

Not sure what goes into designing a custom deck in Wisconsin? Below are some of the most common questions we get about our design process, materials, and services.